431745849 has 16 divisors (see below), whose sum is σ = 639945600. Its totient is φ = 287685648.

The previous prime is 431745841. The next prime is 431745869. The reversal of 431745849 is 948547134.

It is not a de Polignac number, because 431745849 - 2³ = 431745841 is a prime.

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (431745841) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 93847 + ... + 98339.

It is an arithmetic number, because the mean of its divisors is an integer number (39996600).

Almost surely, 2^431745849 is an apocalyptic number.

It is an amenable number.

431745849 is a deficient number, since it is larger than the sum of its proper divisors (208199751).

431745849 is a wasteful number, since it uses less digits than its factorization.

431745849 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8061 (or 8055 counting only the distinct ones).

The product of its digits is 483840, while the sum is 45.

The square root of 431745849 is about 20778.4948684932. The cubic root of 431745849 is about 755.8043553953.

The spelling of 431745849 in words is "four hundred thirty-one million, seven hundred forty-five thousand, eight hundred forty-nine".